Finding the Fourth Proportional to 207,768.84, 311,692.14 and 83,119.56
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Solution
The fourth proportional to 207,768.84, 311,692.14 and 83,119.56 is: 124,694.89
Step by Step Solution
- Step 1: Write the proportion equation
207,768.84 : 311,692.14 = 83,119.56 : x - Step 2: Convert to fraction form
207,768.84/311,692.14 = 83,119.56/x - Step 3: Cross multiply
207,768.84x = 311,692.14 × 83,119.56 - Step 4: Simplify right side
207,768.84x = 25,907,713,532.26 - Step 5: Solve for x
x = 25,907,713,532.26/207,768.84 - Step 6: Final answer
x = 124,694.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.